Optical devices for independent movement control of lenses and image sensors in camera systems

ABSTRACT

Aspects of the present disclosure relate to optical devices and related methods that facilitate independent control of movement of lenses and image sensors in camera systems. In one example, an image sensor is movable independently of and relative to a lens, and the lens is movable independently of the image sensor. In one example, an optical device includes a lens, and an image sensor disposed below the lens. The image sensor is movable relative to the lens. The optical device includes a plurality of magnets disposed about the lens, a plurality of vertical coil structures coiled in one or more vertical planes, and one or more horizontal coil structures coiled in one or more horizontal planes. The plurality of vertical coil structures are configured to, when powered, move the image sensor relative to the lens. The one or more horizontal coil structures are configured to, when powered, move the lens.

BACKGROUND OF THE DISCLOSURE Field of the Disclosure

Aspects of the present disclosure generally relate to optical devicesand related methods that facilitate independent control of movement oflenses and image sensors in camera systems. In one example, an imagesensor is movable independently of and relative to a lens, and the lensis movable independently of the image sensor.

Description of the Related Art

Cameras are used to take images and/or videos of targets, such aspersons or objects, in a variety of contexts and environments. Imagesand videos taken by the cameras, however, can become unstable or out offocus, such as when the camera is moved or shaken, or when manufacturingresults in camera components that are out of alignment. Cameras cansometimes not sufficiently account for the instability or becoming outof focus, causing image defects and hindering image quality of thecamera. Cameras can sometimes not establish optimal optical paths forlenses and optimal images for image sensors.

Image sensors of cameras may also not be movable. Components of camerasalso may not be able to tilt.

Therefore, there is a need in the art for optical devices and relatedmethods that facilitate independently movable image sensors relative tolenses, and that facilitate tilt, optimal image stabilization (OIS), andauotofocus (AF) of camera systems.

SUMMARY OF THE DISCLOSURE

Aspects of the present disclosure generally relate to optical devicesand related methods that facilitate independent control of movement oflenses and image sensors in camera systems. In one example, an imagesensor is movable independently of and relative to a lens, and the lensis movable independently of the image sensor. In one example, an opticaldevice includes a lens, and an image sensor disposed below the lens. Theimage sensor is movable relative to the lens. The optical deviceincludes a plurality of magnets disposed about the lens, a plurality ofvertical coil structures coiled in one or more vertical planes, and oneor more horizontal coil structures coiled in one or more horizontalplanes. When power is applied, the coil structures can generate magneticfields that, in the presence of the magnets, cause relative movement ofthe coil structures and associated structures. The generated magneticfields attract or repel the magnets, facilitating relative movement ofthe coil structures. The plurality of vertical coil structures areconfigured to, when powered, move the image sensor relative to the lens.The one or more horizontal coil structures are configured to, whenpowered, move the lens. In addition, various embodiments are directed toarrangements of such coil structures and magnets, and magnetcompositions and designs, to improve efficiency of the overall system.

In one implementation, an optical device includes a lens and an imagesensor disposed below the lens. The image sensor is movable relative tothe lens. The optical device includes a plurality of magnets disposedabout the lens and magnetized horizontally toward the lens to generatemagnetic fields horizontally in horizontal directions toward the lens.The optical device includes a plurality of vertical coil structurescoiled in one or more vertical planes, and one or more horizontal coilstructures coiled in one or more horizontal planes.

In one implementation, an optical device includes a lens, and an imagesensor disposed below the lens. The image sensor is movable relative tothe lens. The optical device includes a first plurality of magnetsdisposed about the lens and at corners of a square pattern, and a secondplurality of magnets disposed about the lens and at sides of the squarepattern. The optical device includes a plurality of vertical coilstructures coiled in one or more vertical planes that, when powered,horizontally move the image sensor or the lens. Each vertical coilstructure of the plurality of vertical coil structures is disposedinwardly of an inner surface of a respective magnet of the secondplurality of magnets. The optical device includes a plurality ofhorizontal coil structures coiled in one or more horizontal planes that,when powered, move the lens or the image sensor. Each horizontal coilstructure of the plurality of horizontal coil structures includes acenter aligned above or below a respective magnet of the first pluralityof magnets.

In one implementation, an optical device includes a lens and an imagesensor disposed below the lens. The image sensor is movable relative tothe lens. The optical device includes a first plurality of magnetsdisposed about the lens and magnetized horizontally toward the lens togenerate magnetic fields horizontally in horizontal directions towardthe lens, and a second plurality of magnets disposed about the lens andmagnetized horizontally away from the lens to generate magnetic fieldshorizontally in horizontal directions away from the lens. Each magnet ofthe second plurality of magnets is disposed above or below a respectivemagnet of the first plurality of magnets. The optical device alsoincludes one or more horizontal coil structures coiled in one or morehorizontal planes that, when powered, horizontally move the lens or theimage sensor.

BRIEF DESCRIPTION OF THE DRAWINGS

So that the manner in which the above recited features of the presentdisclosure can be understood in detail, a more particular description ofthe disclosure, briefly summarized above, may be had by reference toembodiments, some of which are illustrated in the appended drawings. Itis to be noted, however, that the appended drawings illustrate onlytypical embodiments of this disclosure and are therefore not to beconsidered limiting of its scope, for the disclosure may admit to otherequally effective embodiments.

FIG. 1 is a schematic illustration of a device housing a camera,according to disclosed embodiments.

FIG. 2A is a schematic illustration of a top isometric view of a camerasystem, according to disclosed embodiments.

FIG. 2B is a schematic illustration of a bottom isometric view of thecamera system shown in FIG. 2A, according to disclosed embodiments.

FIG. 3 is a schematic illustration of a side view of a camera systemincluding an optical device, according to disclosed embodiments.

FIGS. 4A-4C are schematic illustrations of side views of multiple coilarrangements of an optical device of a camera system, according todisclosed embodiments.

FIGS. 5-13 are schematic illustrations of top views of positionings ofpluralities of magnets and pluralities of coils, according to disclosedembodiments.

FIG. 14A illustrates a schematic top view of a multiple coil arrangementof an optical device, according to disclosed embodiments.

FIG. 14B illustrates a schematic partial side view of the multiple coilarrangement 1400 shown in FIG. 14A, according to disclosed embodiments.

FIGS. 15-17 are schematic illustrations of side views of multiple coilarrangements of an optical device of a camera system, according todisclosed embodiments.

To facilitate understanding, identical reference numerals have beenused, where possible, to designate identical elements that are common tothe figures. It is contemplated that elements disclosed in oneembodiment may be beneficially utilized on other embodiments withoutspecific recitation.

DETAILED DESCRIPTION

In the following, reference is made to embodiments of the disclosure.However, it should be understood that the disclosure is not limited tospecific described embodiments. Instead, any combination of thefollowing features and elements, whether related to differentembodiments or not, is contemplated to implement and practice thedisclosure. Furthermore, although embodiments of the disclosure mayachieve advantages over other possible solutions and/or over the priorart, whether or not a particular advantage is achieved by a givenembodiment is not limiting of the disclosure. Thus, the followingaspects, features, embodiments and advantages are merely illustrativeand are not considered elements or limitations of the appended claimsexcept where explicitly recited in a claim(s). Likewise, reference to“the disclosure” shall not be construed as a generalization of anyinventive subject matter disclosed herein and shall not be considered tobe an element or limitation of the appended claims except whereexplicitly recited in a claim(s).

Aspects of the present disclosure generally relate to optical devicesand related methods that facilitate independent control of movement oflenses and image sensors in camera systems. In one example, an imagesensor is movable independently of and relative to a lens, and the lensis movable independently of the image sensor. In one example, an opticaldevice includes a lens, and an image sensor disposed below the lens. Theimage sensor is movable relative to the lens. The optical device alsoincludes a plurality of magnets disposed about the lens, a plurality ofvertical coil structures coiled in one or more vertical planes, and oneor more horizontal coil structures coiled in one or more horizontalplanes. When power is applied, the coil structures can generate magneticfields that, in the presence of the magnets, cause relative movement ofthe coil structures and associated structures. The generated magneticfields attract or repel the magnets, facilitating relative movement ofthe coil structures. The plurality of vertical coil structures areconfigured to, when powered, move the image sensor relative to the lens.The one or more horizontal coil structures are configured to, whenpowered, move the lens. In addition, various embodiments are directed toarrangements of such coil structures and magnets, and magnetcompositions and designs, to improve efficiency of the overall system.

The plurality of horizontal coil structures moving the lens verticallyand tilting the lens facilitate autofocus (AF) functions for the camerasystem, facilitate adjusting for misalignment (e.g., non-parallelism)between the lens and the image sensor, facilitate obtaining a widerangle of view for the lens, and facilitate an optimal optical path forthe lens. The plurality of vertical coil structures horizontally movingthe image sensor facilitate optical image stabilization (OIS) functionsfor the camera system and an optimal image for the image sensor.

It is to be understood that relational terms used herein such as“horizontal,” “vertical,” “above,” “below,” “lower”, and “upper” areunderstood to be in relation to the pertinent camera system. As anexample, the camera system may be positioned such that horizontal planesare parallel to gravitational forces and vertical planes areperpendicular to gravitational forces.

The optical devices and camera systems described herein are described aspart of a smartphone device. It is to be understood that aspectsdescribed herein may be used as part of other personal devices, such asother mobile devices (for example tablets) or personal computers (forexample laptops or desktops), or other systems, such as surveillancecamera systems, aviation camera systems, or vehicular camera systems.The present disclosure contemplates that the aspects describe herein maybe used in any camera system.

FIG. 1 is a schematic illustration of a device 100 housing a camera 104,according to disclosed embodiments. The device 100 includes a housing102 and a camera 104. The device 100 may include any of a wide range ofdevices, including desktop computers, notebook (e.g., laptop) computers,tablet computers, set-top boxes, telephone handsets such as so-called“smart” phones, so-called “smart” pads, televisions, security cameras,display devices, digital media players, video gaming consoles, videostreaming device, and the like.

The housing 102 may be formed using any materials by joining a first endof a first wall to a first end of a second wall, a second end of asecond wall to a first end of a third wall, a second end of a third wallto a first end of a fourth wall, and a second end of a fourth wall to asecond end of the first wall. Furthermore, the housing 102 may be formedby including a fifth wall and a sixth wall. The sixth wall is joined toa first edge of the first wall, a first edge of the second wall, a firstedge of the third wall, and a first edge of the fourth wall. The fifthwall is joined to a second edge of the first wall, a second edge of thesecond wall, a second edge of the third wall, and a second edge of thefourth wall. The first edge and second edge are on opposite sides ofeach wall. The plurality of walls, the sixth wall, and the fifth wallmay be joined together by any suitable structures such as adhesives,fasteners (for example, screws), joints, or any combination thereof. Itis contemplated that other methods not listed of joining togethermaterials may be applicable.

The housing 102 may house components such as a controller, anon-volatile memory, a power supply, a volatile memory, an interface, abuffer, a printed circuit board, and the like. Furthermore, the housing102 may have a slot for additional memory storage devices, such assingle-level cell memory, multi-level cell memory, triple-level cellmemory, quad-level cell memory, and the like. The housing 102 may alsohave a connection unit to a power source or to transfer data to and fromthe device 100. Each component of the device 100 may be mechanicallyattached to the housing 102 or to another component and may includeelectrically conductive traces that electrically interconnect componentsof the device 100. In one example, the device 100 may be connecteddirectly to a computer server, network attached storage unit, or thelike.

The camera 104 may include any function relating to an opticalinstrument used to record images and/or video. The camera 104 captureslight photons, where the light photons may be in the visible spectrumand/or in other portions of the electromagnetic spectrum (e.g., theinfrared spectrum). The camera 104 includes a small opening (e.g., anaperture) to let the light in to capture an image on a light-sensitivesurface or substrate (e.g., a photographic film or a digital sensor).The opening may be any shape suitable to let light into the camera 104such as a circular opening. The substrate may include a transitionmetal-halide. In one example, the camera 104 is configured to adjust thesize of the small hole to allow more or less light into the camera 104.The camera 104 may also have a shutter mechanism to determine the amountof time the light-sensitive surface is exposed to the light. In otherembodiments, the images captured by the camera may be stored on a memorystorage device as a series of images over time, (e.g., a video).

FIG. 2A is a schematic illustration of a top isometric view of a camerasystem 200, according to disclosed embodiments. The camera system 200may be used as the camera 104 described in FIG. 1. The camera system 200includes a frame 202, a lens 204, a magnet housing 208 for a pluralityof magnets 206 (four are shown), where each magnet 206 may be coupled toone or more coils, such as an optical image stabilization (OIS) coiland/or an autofocus (AF) coil. Each magnet 206 may be coupled to a toppanel 210, and a plurality of wires 212.

FIG. 2B is a schematic illustration of a bottom isometric view of thecamera system 200 shown in FIG. 2A, according to disclosed embodiments.The camera system 200 further includes an image sensor 214, a bottompanel 216, an adjustable platform 218, a static platform 220, aplurality of panel arms 222, a base 224, and a plurality of panelstabilizers 226.

The frame 202 of the camera system 200 may be formed by the materialsdescribed for the housing 102 of FIG. 1. The frame 202 may be part of,integrally formed with, and/or coupled to the housing of FIG. 1. Thelens 204 may include one more optical lens elements, where light passingthrough the lens 204 is captured at the image sensor 214. The lightpassing through the lens 204 converges to a point on the image sensor214. The image sensor 214 may be situated on the static platform 220 ofthe bottom panel 216 of the base 224. The base 224 may include othercomponents such as circuitry for the function of the various componentsof the camera system 200.

The adjustable platform 218 includes a plurality of panel arms 222 and aplurality of panel stabilizers 226. The plurality of panel arms 222 mayshift or adjust the plurality of magnets 206 as a response to a changein the current passing through the OIS coils and/or the AF coils. Theplurality of panel stabilizers 226 may include any suitable material forvibration dampening. The plurality of wires 212 may connect the toppanel 210 to the bottom panel 216. The top panel 210 and the bottompanel may be constructed from any appropriate material that may allowfor some amount of flex during the operation of the camera system 200.

FIG. 3 is a schematic illustration of a side view of a camera system 300including an optical device 301, according to disclosed embodiments. Thecamera system 300 may be similar to the camera 104 shown in FIG. 1and/or the camera system 200 shown in FIG. 2, and may include one ormore of the aspects, components, features, and/or properties thereof.The camera system 300 includes a lens 304, a plurality of magnets 302disposed about the lens 304, a first plurality of vertical coilstructures 320, a second plurality of vertical coil structures 306, afirst plurality of horizontal coil structures 308, a second plurality ofhorizontal coil structures 311, an image sensor 310, and a base 314. Thecamera system 300 may be used as the camera system 200 shown in FIG. 2,and the base 314 may be used as the base 224 of FIG. 2. In thedescriptions herein, vertical coil structures (such as the secondplurality of vertical coil structures 306) may be referred to as lensOIS coils 306, vertical coil structures (such as the first plurality ofvertical coil structures 320) may be referred to as image sensor OIScoils 320, horizontal coil structures (such as the first plurality ofhorizontal coil structures 308) may be referred to as lens AF coils 308,and horizontal coil structures (such as the second plurality ofhorizontal coil structures 311) may be referred to as image sensor AFcoils 311, for exemplary purposes.

In the descriptions herein, for exemplary purposes, the first pluralityof vertical coil structures 320 may be referred to as a first pluralityof OIS coils, the second plurality of vertical coil structures 306 maybe referred to as a second plurality of OIS coils, the first pluralityof horizontal coil structures 308 may be referred to as a firstplurality of AF coils, and the second plurality of horizontal coilstructures 311 may be referred to as a second plurality of AF coils.

The plurality of lens OIS coils 306 are oriented along and coiled in oneor more vertical planes (e.g., vertical planes parallel to the y-zplane) and the plurality of lens AF coils 308 are oriented along andcoiled in one or more horizontal planes (e.g., horizontal planesparallel to the x-y plane). Furthermore, the plurality of image sensorOIS coils 320 are oriented along and coiled in one or more verticalplanes (e.g., vertical planes parallel to the y-z plane) parallel to theplurality of lens OIS coils 306. The plurality of image sensor AF coils311 are oriented along and coiled in one or more horizontal planes(e.g., horizontal planes parallel to the x-y plane) parallel to theplurality of lens AF coils 308. The vertical planes and the horizontalplanes are perpendicular to each other. The image sensor 310 is disposedbelow the lens 304 and the one or more magnets 302 are disposed aboutthe lens. In one embodiment, which can be combined with otherembodiments, the lens 304 is operably coupled to one or more LiDARsensors.

In FIG. 3, two magnets 302 are illustrated; however, more than twomagnets, such as any amount of magnets between about two magnets toabout eight magnets (such as four magnets), may be applicable to theembodiments disclosed. Furthermore, two lens OIS coils 306, two imagesensor OIS coils 320, two lens AF coils 308, and image sensor AF coils311 are illustrated; however, more than two lens OIS coils 306, such anyamount of lens OIS coils 306 between about two lens OIS coils to abouteight lens OIS coils (such as four lens OIS coils), more than two imagesensor AF coils 311, such any amount of image sensor AF coils 311between about two image sensor AF coils to about eight image sensor AFcoils (such as four image sensor AF coils), and more than two lens AFcoils 308, such as any amount of lens AF coils between about two lens AFcoils to about eight lens AF coils (such as four lens AF coils), may beapplicable to the embodiments disclosed. Furthermore, more than twoimage sensor OIS coils 320, such as any amount of image sensor OIS coilsbetween about one image sensor OIS coil to about eight IS coils (such asa four image sensor OIS coils), may be applicable to the embodimentsdisclosed.

As light 312 passes through the lens 304 that may include one or morelenses, the light 312 is refracted and converged to a central point 316(e.g., a principal focus) on the image sensor 310. In one embodiment,which can be combined with other embodiments, the image sensor 310 iscoupled to a gyroscope. The vertical axis at the central point 316 maybe referred to as the optical axis 318 of the image sensor 310. Imagesrecorded when the central point 316 of the converged light 312intersects the image sensor 310 may generally be of better quality thanthe images recorded when the central point 316 of the converged light312 does not intersect the image sensor 310.

In order to adjust where the central point 316 of the light 312 islocated, the lens OIS coils 306, the image sensor OIS coils 320, thelens AF coils 308, and the image sensor AF coils 311 are utilized. Thelens 304 is attached to a first magnetically suspended structure 350that is movable in the x-y plane and/or the z-direction. The firstmagnetically suspended structure 350 includes horizontal members 351coupled between the lens 304 and the lens OIS coils 306 and verticalmembers 352 coupled between the lens OIS coils 306 and the lens AF coils308.

The movement of the lens 304 and/or the image sensor 310 along the x-yplane and/or the z-direction may be used to minimize the shake orvibration of the camera during camera operation. The lens 304 may bemoved along the x-y plane and/or the z-direction utilizing the one ormore lens OIS coils 306, indicated by the dashed arrows intersecting thelens OIS coils 306. Furthermore, the lens 304 may be moved along thez-direction to change the position of the central point 316 of the light312 by utilizing the one or more lens AF coils 308 (indicated by thedashed arrows intersecting the lens AF coils 308).

The image sensor 310 is movably disposed in the optical device 301, andthe image sensor 310 is movable relative to the lens 304. The imagesensor 310 may be shifted either in the x-direction, the y-direction,both the x-direction and the y-direction, and/or the z-direction. Theimage sensor 310 is coupled to the plurality of image sensor OIS coils320 and the plurality of the image sensor AF coils 311 through a secondmagnetically suspended structure 360 that is moveable in the x-y planeand/or along the z-axis. The second magnetically suspended structure 360may be independently movable relative to the first magneticallysuspended structure 350 or coupled to the first magnetically suspendedstructure 350. The image sensor 310 is moved using the image sensor OIScoils 320 (indicated by the dashed arrows intersecting the image sensorOIS coils 320) parallel to the x-y plane to better orient the imagesensor 310 relative to the optical axis 318 and the central point 316 ofthe light 312. The second magnetically suspended structure 360 includeshorizontal members 361 and vertical members 367 coupled between theimage sensor 310 and the image sensor OIS coils 320. The image sensor310 is also moved vertically using the image sensor AF coils 311. Theimage sensor 310 may move translationally vertically along the Z-axisand/or may tilt relative to the Z-axis and/or the optical axis 318 usingthe image sensor AF coils 311. The second magnetically suspendedstructure 360 includes vertical members 366 coupled between the imagesensor AF coils 311 and the horizontal members 361.

In one embodiment which can be combined with other embodiments, thefirst magnetically suspended structure 350 and the second magneticallysuspended structure 360 are part of a single magnetically suspendedstructure. In one embodiment, which can be combined with otherembodiments, the optical device 301 includes optional vertical members365 coupled between the horizontal members 361 and the lens AF coils308. In one embodiment, which can be combined with other embodiments,the optional vertical members 365 are omitted such that the firstmagnetically suspended structure 350 is moved and controlledindependently of movement and control of the second magneticallysuspended structure 362.

During operation, electric power is applied to the lens OIS coils 306,the image sensor OIS coils 320, the image sensor AF coils 311, and thelens AF coils 308 to energize the coils and generate magnetic fields.Each magnet 302 has a magnetic field traveling from the south pole tothe north pole of the magnet (indicated by the arrows extending throughthe magnets 302). Based on the Lorentz forces generated between themagnets 302 and current in either the lens OIS coils 306, the imagesensor OIS coils 320, the lens AF coils 308, or the image sensor AFcoils 311, or all of the lens OIS coils 306, the lens AF coils 308, theimage sensor AF coils 311, and the image sensor OIS coils 320 are eitherattracted or repelled by the magnets 302. Movement of the lens OIS coils306, the image sensor OIS coils 320 the lens AF coils 308, and/or theimage sensor AF coils 311 using the magnets 302 facilitate movement ofthe first magnetically suspended structure 350 and/or the secondmagnetically suspended structure 360.

By adjusting the current (e.g., electrical power) traveling througheither the lens OIS coils 306, the lens AF coils 308, or both the lensOIS coils 306 and the lens AF coils 308, the lens 304 may be moved to aposition relative to the image sensor 310 to realize OIS and/or AFcorrections. Each of the plurality of lens AF coils 308 may havecapability to have differing electrical power, such that one lens AFcoil 308 may move independently of another lens AF coil 308 to generatea lens 304 tilt, such as a tilt of the optical axis 318 of the lens 304relative to a vertical axis (e.g., the z-axis).

Furthermore, by adjusting the current (e.g., electrical power) travelingthrough either the image sensor OIS coils 320, the image sensor AF coils311, or both the image sensor AF coils 311 and the image sensor OIScoils 320, the image sensor 310 may be moved to a position relative tothe lens 304 to realize OIS and/or AF corrections. Each of the pluralityof image sensor OIS coils 320 may have capability to have differingelectrical power, such that one image sensor OIS coil 320 may moveindependently of another image sensor OIS coil 320 to generate an imagesensor 310 shift, such as a shift along the x-y plane relative to thelens 304. Each of the plurality of image sensor AF coils 311 may havecapability to have differing electrical power, such that one imagesensor AF coil 311 may move independently of another image sensor AFcoil 311 to generate an image sensor 310 shift, such as a shift alongthe z-axis relative to the lens 304 and/or a tilt relative to thez-axis.

Misalignment (e.g., non-parallelism) between the lens 304 and the imagesensor 310 or motion from the camera device during operation may beremedied by utilizing a lens 304 tilt or shift and/or by utilizing animage sensor 310 tilt or shift. Furthermore, the lens may be tilted toachieve a wider angle of view for the camera system during deviceoperation.

In one embodiment, which can be combined with other embodiments, thelens AF coils 308 and the lens OIS coils 306 may be used to controlhorizontal movement, vertical movement, and/or tilt of the lens 304independently of the image sensor OIS coils 320 and the image sensor AFcoils 311 controlling horizontal movement, vertical movement, and/ortilt of the image sensor 310.

FIGS. 4A-4C are schematic illustrations of side views of multiple coilarrangements 400, 425, 450 of an optical device of a camera system,according to disclosed embodiments. The multiple coil arrangements 400,425, 450 may be used in the device 100, the camera system 200, and/orthe camera system 300 described herein. In the multiple coilarrangements 400, 425, 450, a magnetic field of a magnet 402 of aplurality of magnets is illustrated by the solid arrows traveling from asouth pole S to a north pole N of the magnet 402. Though the multiplecoil arrangements 400, 425, 450 illustrate a single magnet 402, thedisclosed embodiments may reflect on some or all of the plurality ofmagnets of a camera system. In the embodiments discussed, the AF coilsmay be used as either lens AF coils or image sensor AF coils, and theOIS coils may be used as either AF OIS coils or image sensor OIS coils.The AF coils adjust the lens or image sensor along the z-direction andthe OIS coils adjust the lens or image sensor along the x-y plane.

In FIG. 4A, the multiple coil arrangement 400 includes an OIS coil 404and a first AF coil 406 a. The OIS coil 404 is disposed outwardly of anouter surface 412 of the respective magnet 402 and is coiled in avertical plane (in the Z-direction) and disposed adjacent to the magnet402. The present disclosure contemplates that the OIS coils 404 may bedisposed inwardly of inner surfaces such as an inner surface 411 of therespective magnets 402. The first AF coil 406 a is coiled in ahorizontal plane (in the X-Y plane) and is disposed at least partiallybelow a lower surface 410 of the magnet 402. The first AF coil 406 aincludes a first portion 499 aligned vertically under the magnet 402 anda second portion 498 aligned inwardly of the inner surface 411 of themagnet 402. An outward end of the first portion 499 is alignedvertically under a center of the magnet 402. A center of the first AFcoil 406 a in the x-y plane is aligned vertically under the innersurface 411 of the magnet 402. Electrical current flows through thefirst AF coil 406 a in a loop. Hence, the electrical current flows in adirection out of the page when flowing through the first portion 499(denoted by a dot), and the electrical current flows in a direction intothe page when flowing through the second portion 498 (denoted by an“x”). The dot and x convention for current flow directions will be usedin this and other figures. The OIS coil 404 includes a first portion 497through which electrical current flows in a direction out of the page,and a second portion 496 through which the electrical current flows in adirection into the page.

In one embodiment, which can be combined with other embodiments, thefirst portion 499 the first AF coil 406 a is aligned outwardly of theouter surface 412 of the magnet 402, and the second portion 498 isaligned vertically under the magnet 402 and inwardly of the outersurface 412 of the magnet 402. In such an embodiment, the center of thefirst AF coil 406 a is aligned vertically under the outer surface 412 ofthe respective magnet 402. The positions of the first AF coil 406 afacilitate magnetic field experienced by the first AF coil 406 a beinglarger, facilitating efficiency and less electrical power (e.g.,current) needed for the first AF coil 406 a. The positions of the firstAF coil 406 a facilitate the first AF coil 406 a experiencing less straymagnetic field and experiencing more direct magnetic field to move(e.g., vertically), the first AF coil 406 a.

In the multiple coil arrangement 425 shown in FIG. 4B, the multiple coilarrangement 425 includes the OIS coil 404 and a second AF coil 406 b.The first AF coil 406 a may be omitted in the multiple coil arrangement425 shown in FIG. 4B. The OIS coil 404 is disposed inwardly of the innersurface 411 and is coiled in a vertical plane and disposed adjacent tothe magnet 402. The second AF coil 406 b is disposed at least partiallyabove an upper surface 413 of the magnet 402. The second AF coil 406 bincludes a first portion 495 aligned vertically above the magnet 402 anda second portion 494 aligned inwardly of the inner surface 411 of themagnet 402. An outward end of the first portion 495 is alignedvertically above a center of the magnet 402. A center of the second AFcoil 406 b is aligned vertically above the inner surface 411 of themagnet 402. Electrical current flows through the second AF coil 406 b ina loop. Hence, the electrical current flows in a direction out of thepage when flowing through the second portion 494, and the electricalcurrent flows in a direction into the page when flowing through thefirst portion 495.

In one embodiment, which can be combined with other embodiments, thefirst portion 495 of the second AF coil 406 b is aligned outwardly ofthe outer surface 412 of the magnet 402 and the second portion 494 isaligned vertically above the magnet 402 and inwardly of the outersurface 412 of the magnet 402. In such an embodiment, the center of thesecond AF coil 406 b is aligned vertically above the outer surface 412of the respective magnet 402.

In the multiple coil arrangement 450 shown in FIG. 4C, the multiple coilarrangement 450 includes the OIS coil 404, the first AF coil 406 a shownin FIG. 4A, and the second AF coil 406 b shown in FIG. 4B and disposedat least partially above the first AF coil 406A. The two AF coils 406 a,406 b may operate in unison to move the lens in the z-direction morequickly or along a greater distance than by using only one AF coil, suchas only a first AF coil 406 a or only a second AF coil 406 b.

In the multiple coil arrangements 400, 425, 450, the centers of the AFcoils 406 a, 406 b can be aligned with the inner surfaces 411 or theouter surfaces 412 of the respective magnets 402. In the multiple coilarrangements 400, 425, 450, outward ends of the first portions 499, 495of the AF coils 406 a, 406 b are aligned vertically above or verticallybelow the center of the respective magnet 402, which results in a largermagnetic force experienced by the AF coils 406 a, 406 b (as shown by thehigher density of magnetic field lines in the figures in those regions)using the electrical power and the magnets 402. The larger magneticforces experienced by the AF coils 406 a, 406 b facilitate energyefficiency and less electrical power (e.g., current) needed for the AFcoils 406 a, 406 b. The positions of the AF coils 406 a, 406 bfacilitate the AF coils 406 a, 406 b experiencing less stray magneticfield and experiencing more direct magnetic field to move (e.g.,vertically), the AF coils 406 a, 406 b.

The magnet 402 may have one or more AF coils 406 a, 406 b associatedwith the magnet 402, where each AF coil 406 a, 406 b of differentmagnets 402 may operate independently of each other. The OIS coils 404may be aligned inwardly of the inner surfaces 411 of the magnets 402.

FIGS. 5-13 are schematic illustrations of top views of positionings ofpluralities of magnets and pluralities of coils, according to disclosedembodiments. The locations of the pluralities of magnets 520 a-d, 620a-d, 720 a-d, 820 a-d, 920 a-d, 1020 a-d, 1120 a-d, 1220 a-h, 1320 a-c,the locations of the pluralities of AF coils 522 a-d, 622 a-d, 722 a-d,822, 922, 1022 a-d, 1122 a-d, 1222 e-h, 1322 a-c, and the locations ofthe pluralities of OIS coils 524 a-d, 624 a-d, 724 a-d, 824 a-d, 924a-d, 1024 a-d, 1124 a-d, 1224 a-d, 1324 a-c are intended to show ageneral area that the component may be within an optical device of acamera system. Variations in the locations may be applicable inembodiments not specifically illustrated in FIG. 5-13. The magnets shownin FIGS. 5-13 are magnetized horizontally toward a lens (such as thelens 304).

In the embodiments shown in FIGS. 5-13, the AF coils 522 a-d, 622 a-d,722 a-d, 822, 922, 1022 a-d, 1122 a-d, 1222 e-h, 1322 a-c are forvertical movement, such as vertical translation and/or tilting. The AFcoils 522 a-d, 622 a-d, 722 a-d, 822, 922, 1022 a-d, 1122 a-d, 1222 e-h,1322 a-c shown can be used for vertical movement of a lens (such as thelens 304) and/or vertical movement of an image sensor (such as the imagesensor 310). In the embodiments shown in FIGS. 5-13, the OIS coils 524a-d, 624 a-d, 724 a-d, 824 a-d, 924 a-d, 1024 a-d, 1124 a-d, 1224 a-d,1324 a-c are for horizontal movement, such as horizontal movement alongthe x-y plane. The OIS coils 524 a-d, 624 a-d, 724 a-d, 824 a-d, 924a-d, 1024 a-d, 1124 a-d, 1224 a-d, 1324 a-c shown can be used forhorizontal movement of a lens (such as the lens 304) and/or horizontalmovement of an image sensor (such as the image sensor 310). The presentdisclosure contemplates that the lens may be moved horizontally and/orvertically while the image sensor is stationary. The present disclosurecontemplates that the image sensor may be moved horizontally and/orvertically while the lens is stationary. The present disclosurecontemplates that the image sensor may be moved horizontally and/orvertically while the lens is moved horizontally and/or vertically. Thepresent disclosure also contemplates that the lens is moved one ofvertically or horizontally while the image sensor is moved the other ofvertically or horizontally. In one embodiment, which can be combinedwith other embodiments, the AF coils 522 a-d, 622 a-d, 722 a-d, 822,922, 1022 a-d, 1122 a-d, 1222 e-h, 1322 a-c are used to vertically movea lens while the OIS coils 524 a-d, 624 a-d, 724 a-d, 824 a-d, 924 a-d,1024 a-d, 1124 a-d, 1224 a-d, 1324 a-c are used to horizontally move animage sensor. In one embodiment, which can be combined with otherembodiments, the AF coils 522 a-d, 622 a-d, 722 a-d, 822, 922, 1022 a-d,1122 a-d, 1222 e-h, 1322 a-c are used to vertically move an image sensorwhile the OIS coils 524 a-d, 624 a-d, 724 a-d, 824 a-d, 924 a-d, 1024a-d, 1124 a-d, 1224 a-d, 1324 a-c are used to horizontally move a lens.

Each of AF coils 522 a-d, 622 a-d, 722 a-d, 822, 922, 1022 a-d, 1122a-d, 1222 e-h, 1322 a-c of the FIGS. 5-13 may operate independently ofeach other, such that one or more AF coils of an embodiment may have adifferent electrical power than another one or more AF coils of the sameembodiment. The non-uniform electrical power supplied to the one or moreAF coils (e.g., a different electrical power supplied to at least one,but not all AF coils) may generate a lens tilt in the z-axis, such thatthe tilt changes the positioning of the center point (e.g., principalfocus) of a lens away from the center of the image sensor. Misalignment(e.g., non-parallelism) between the lens and the image sensor plane andachieving a wider angle of view may be compensated by utilizing a lenstilt.

Each of the plurality of OIS coils 524 a-d, 624 a-d, 724 a-d, 824 a-d,924 a-d, 1024 a-d, 1124 a-d, 1224 a-d, 1324 a-c of FIGS. 5-13 mayoperate independently of each other, such that one or more OIS coils ofan embodiment may have a different electrical power than another one ormore OIS coils of the same embodiment. The non-uniform electrical powersupplied to the one or more OIS coils (e.g., a different electricalpower supplied to at least one, but not all OIS coils) may generate animage sensor shift or a lens shift in the x-y plane to better align theoptical axis relative to the image sensor.

Aspects of FIG. 3 and FIG. 4 may be similar or may be applicable to theembodiments discussed in FIGS. 5-13. For example, the AF coils 522 a-d,622 a-d, 722 a-d, 822, 922, 1022 a-d, 1122 a-d, 1222 e-h, 1322 a-c mayeither be partially disposed beneath respective adjacent magnets, bepartially disposed above respective adjacent magnets, or both bepartially disposed beneath respective adjacent magnets and be partiallydisposed above respective adjacent magnets. The magnets are disposed atcorners or at sides of a shape, such as a rectangular shape or atriangular shape. Magnets located in a corner may have an octagonalshape (as shown for example in FIG. 5), such as a non-regular octagonalshape having a profile in the shape of an isosceles trapezoid. Magnetslocated along a side of a shape may have a rectangular shape (as shownfor Example in FIG. 9). The previously listed shapes of the magnets arenot intended to be limiting, but to provide an example of possibleembodiments.

FIG. 5 illustrates a schematic top view of a multiple coil arrangement500 of an optical device, according to disclosed embodiments. Themultiple coil arrangement 500 includes four magnets 520 a-d, four AFcoils 522 a-d, and four OIS coils 524 a-d disposed along a rectangularpattern 590, such as a square pattern. The four magnets 520 a-d arelocated at four corners of the square pattern. The first magnet 520 a islocated in a second location 502, the second magnet 520 b is located ina fifth location 505, the third magnet 520 c is located in an eighthlocation 508, and the fourth magnet 520 d is located in an eleventhlocation 511. In one embodiment, which can be combined with otherembodiments, centers of the four magnets 520 a-d in the x-y plane arealigned with the four respective corners of the rectangular pattern 590.

A lens and/or an image sensor may be tilted when differing electricalpower is applied to at least two of the AF coils of the plurality of AFcoils 522 a-d. When the same electrical power is applied to each of theplurality of AF coils 522 a-d, the lens and/or the image sensor may bevertically moved parallel to the z-axis without tilting the lens and/orthe image sensor. The electrical power (e.g., current) applied to eachAF coil of the plurality of AF coils 522 a-d and each OIS coil of theplurality of OIS coils 524 a-d may be calibrated for various OISpositions, AF positions, and tilt angles.

In one embodiment, which can be combined with other embodiments, the AFcoils 522 a-d are disposed at gaps from each other, and the OIS coils524 a-d are disposed at gaps from each other.

The first AF coil 522 a associated with the first magnet 520 a islocated in a third location 503 or inwardly of the third location 503.The second AF coil 522 b associated with the second magnet 520 b islocated in a sixth location 506 or inwardly of the sixth location 506.The AF lens coil 522 c associated with the third magnet 520 c is locatedin a ninth location 509 or inwardly of the ninth location 509. Thefourth AF coil 522 d associated with the fourth magnet 520 d is locatedin a twelfth location 512 or inwardly of the twelfth location 512.

The first OIS coil 524 a associated with the first magnet 520 a islocated in a first location 501. The second OIS coil 524 b associatedwith the second magnet 520 b is located in a fourth location 504. Thethird OIS coil 524 c associated with the third magnet 520 c is locatedin a seventh location 507. The fourth OIS coil 524 d associated with thefourth magnet 520 d is located in a tenth location 510.

In one embodiment, which can be combined with other embodiments, themagnets and coils located at, inwardly of, outwardly of, or between therespective locations 501-512 are disposed at, inwardly of, outwardly of,or between the respective locations 501-512 such that centers in the x-yplane of the magnets and coils are aligned with, inwardly of, outwardlyof, or between the respective locations 501-512.

In one embodiment, which can be combined with other embodiments, centersof the AF coils 522 a-d in the x-y plane are vertically offset fromcenters of the respective adjacent magnets 520 a-d in the x-y plane.

A surface (such as a lower surface) of each of one or more magnets ofthe plurality of magnets 520 a-d faces a respective AF coil of theplurality of AF coils 522 a-d. The surface of the magnet 520 a-dincludes a first surface area, and the respective AF coil 522 a-dincludes a second surface area facing the surface of the respectivemagnet. The second surface area is a ratio R of the first surface area,and the ratio R is within a range of 0.8 to 1.2.

FIG. 6 illustrates a schematic top view of a multiple coil arrangement600 of an optical device, according to disclosed embodiments. Themultiple coil arrangement 600 includes four magnets 620 a-d, four AFcoils 622 a-d, and four OIS coils 624 a-d disposed along a squarepattern 690. The four magnets 620 a-d are located at the corners of thesquare pattern 690. The first magnet 620 a is located in a secondlocation 602, the second magnet 620 b is located in a fifth location605, the third magnet 620 c is located in an eighth location 608, andthe fourth magnet 620 d is located in an eleventh location 611.

The first AF coil 622 a associated with the first magnet 620 a islocated in a first location 601 or outwardly of the first location 601The second AF coil 622 b associated with the second magnet 620 b islocated in a fourth location 604 or outwardly of the fourth location 604The third AF coil 622 c associated with the third magnet 620 c islocated in a seventh location 607 or outwardly of the seventh location607. The fourth AF coil 622 d associated with the fourth magnet 620 d islocated in a tenth location 610 or outwardly of the tenth location 610.

The first OIS coil 624 a associated with the first magnet 620 a islocated in a third location 603. The second OIS coil 624 b associatedwith the second magnet 620 b is located in a sixth location 606. Thethird OIS coil 624 c associated with the third magnet 620 c is locatedin a ninth location 609. The fourth OIS coil 624 d associated with thefourth magnet 620 d is located in a twelfth location 612.

FIG. 7 illustrates a schematic top view of a multiple coil arrangement700 of an optical device, according to disclosed embodiments. Themultiple coil arrangement 700 includes four magnets 720 a-d, four AFcoils 722 a-d, and four OIS coils 724 a-d disposed along a squarepattern 790. The four magnets 720 a-d are disposed at the four cornersof the square pattern 790. The first magnet 720 a is located in a firstlocation 701, the second magnet 720 b is located in a third location703, the third magnet 720 c is located in an fifth location 705, and thefourth magnet 720 d is located in a seventh location 707.

The first AF coil 722 a associated with the first magnet 720 a islocated at a second location 702. The second AF coil 722 b associatedwith the second magnet 720 b is located at a fourth location 704. Thethird AF coil 722 c associated with the third magnet 702 c is located ata sixth location 706. The fourth AF coil 722 d associated with thefourth magnet 720 d is located at an eighth location 708.

The first OIS coil 724 a associated with the first magnet 720 a islocated inwardly of the second location 702. The second OIS coil 724 bassociated with the second magnet 720 b is located inwardly of thefourth location 704. The third OIS coil 724 c associated with the thirdmagnet 720 c is located inwardly of the sixth location 706. The fourthOIS coil 724 d associated with the fourth magnet 720 d is locatedinwardly the eighth location 708.

FIG. 8 illustrates a schematic top view of a multiple coil arrangement800 of an optical device, according to disclosed embodiments. Themultiple coil arrangement 800 includes four magnets 820 a-d, an AF coil822, and four OIS coils 824 a-d disposed along a square pattern 890. TheAF coil 822 is a single AF coil structure having coils coiled in arectangular pattern. The four magnets 820 a-d are disposed above orbelow four corners of the rectangular pattern of the single AF coilstructure of the AF coil 822. The four magnets 820 a-d are located atthe four corners of the square pattern 890. The first magnet 820 a islocated in a second location 802, the second magnet 820 b is located ina fifth location 805, the third magnet 820 c is located in an eighthlocation 808, and the fourth magnet 820 d is located in an eleventhlocation 811. The OIS coils 824 a-d are disposed outwardly of outersurfaces of the magnets 820 a-d. The present disclosure contemplatesthat the OIS coils 824 a-d may be disposed inwardly of inner surfaces ofthe magnets 820 a-d.

The AF coil 822 intersects the first magnet 820 a at an area under thefirst magnet 820 a at the third location 803, the second magnet 820 b atan area under the second magnet 820 b at the sixth location 806, thethird magnet 820 c at an area under the third magnet 820 c at the ninthlocation 809, and the fourth magnet 820 d at an area under the fourthmagnet 820 d at the twelfth location 812. The AF coil 822 follows thesquare pattern 890, and one of the four magnets 820 a-d are located ateach corner of the square pattern 890.

The first OIS coil 824 a associated with the first magnet 820 a islocated in a first location 801. The second OIS coil 824 b associatedwith the second magnet 820 b is located in a fourth location 804. Thethird OIS coil 824 c associated with the third magnet 820 c is locatedin a seventh location 807. The fourth OIS coil 824 d associated with thefourth magnet 820 d is located in a tenth location 810.

FIG. 9 illustrates a schematic top view of a multiple coil arrangement900 of an optical device, according to disclosed embodiments. Themultiple coil arrangement 900 includes four magnets 920 a-d, an AF coil922, and four OIS coils 924 a-d disposed along a square pattern 990. TheAF coil 922 is a single AF coil structure having coils in a rectangularpattern. The four magnets 920 a-d are disposed above or below four sidesof the rectangular pattern of the single AF coil structure of the AFcoil 922. Each side of the square pattern 990 includes one of the fourmagnets 920 a-d. The first magnet 920 a is located in a first location901, the second magnet 920 b is located in a third location 903, thethird magnet 920 c is located in a fifth location 905, and the fourthmagnet 920 d is located in an seventh location 907.

The AF coil 922 intersects the first magnet 920 a at an area under thefirst magnet 920 a at the first location 901, the second magnet 920 b atan area under the second magnet 920 b at the third location 903, thethird magnet 920 c at an area under the third magnet 920 c at the fifthlocation 905, and the fourth magnet 920 d at an area under the fourthmagnet 920 d at the seventh location 907. The AF coil 922 follows thesquare pattern 990, and one of the four magnets 920 a-d are located ateach side of the square pattern 990.

The first OIS coil 924 a associated with the first magnet 920 a islocated in a second location 902. The second OIS coil 924 b associatedwith the second magnet 920 b is located in a fourth location 904. Thethird OIS coil 924 c associated with the third magnet 920 c is locatedin a sixth location 906. The fourth OIS coil 924 d associated with thefourth magnet 920 d is located in an eighth location 908. The presentdisclosure contemplates that the OIS coils 924 a-d may be disposedoutwardly of outer surfaces of the magnets 920 a-d.

FIG. 10 illustrates a schematic top view of a multiple coil arrangement1000 of an optical device, according to disclosed embodiments. Themultiple coil arrangement 1000 includes four magnets 1020 a-d, four AFcoils 1022 a-d, and four OIS coils 1024 a-d disposed along a squarepattern 1090. Each side of the square pattern 1090 includes one of thefour magnets 1020 a-d. The first magnet 1020 a is located in a firstlocation 1001, the second magnet 1020 b is located in a third location1003, the third magnet 1020 c is located in a fifth location 1005, andthe fourth magnet 1020 d is located in a seventh location 1007. In oneembodiment, which can be combined with other embodiments, centers of thefour magnets 1020 a-d in the x-y plane are aligned with the fourrespective sides of the square pattern 1090.

The OIS coils 1024 a-d and the AF coils 1022 a-d are disposed inwardlyof inner surfaces of the magnets 1020 a-d. The present disclosurecontemplates that the OIS coils 1024 a-d and the AF coils 1022 a-d maybe disposed outwardly of outer surfaces of the magnets 1020 a-d.

The first AF coil 1022 a associated with the first magnet 1020 a islocated in a second location 1002 or inwardly of the second location1002. The second AF coil 1022 b associated with the second magnet 1020 bis located in a fourth location 1004 or inwardly of the fourth location1004. The third AF coil 1022 c associated with the third magnet 1020 cis located in a sixth location 1006 or inwardly of the sixth location1006. The fourth AF coil 1022 d associated with the fourth magnet 1020 dis located in an eighth location 1008 or inwardly of the eighth location1008.

The first OIS coil 1024 a associated with the first magnet 1002 a islocated inwardly of the second location 1002. The second OIS coil 1024 bassociated with the second magnet 1020 b is located inwardly of thefourth location 1004. The third OIS coil 1024 c associated with thethird magnet 1020 c is located inwardly of the sixth location 1006. Thefourth OIS coil 1024 d associated with the fourth magnet 1020 d islocated inwardly of the eighth location 1008.

FIG. 11 illustrates a schematic top view of a multiple coil arrangement1100 of an optical device, according to disclosed embodiments. Themultiple coil arrangement 1100 includes four magnets 1120 a-d, four AFcoils 1122 a-d, and four OIS coils 1124 a-d disposed along a squarepattern 1190. Each side of the square pattern 1190 includes one of thefour magnets 1120 a-d. The first magnet 1120 a is located in a secondlocation 1102, the second magnet 1120 b is located in a fifth location1105, the third magnet 1120 c is located in an eighth location 1108, andthe fourth magnet 1120 d is located in an eleventh location 1111.

The OIS coils 1124 a-d are disposed inwardly of inner surfaces of themagnets 1120 a-d. The present disclosure contemplates that the OIS coils1124 a-d may be disposed outwardly of outer surfaces of the magnets 1120a-d.

The AF coils 1122 a-d are disposed outwardly of outer surfaces of themagnets 1120 a-d. The present disclosure contemplates that the AF coils1122 a-d may be disposed inwardly of inner surfaces of the magnets 1120a-d.

The first AF coil 1122 a associated with the first magnet 1120 a islocated in a first location 1101 or outwardly of the first location1101. The second AF coil 1122 b associated with the second magnet 1120 bis located in a fourth location 1104 or outwardly of the fourth location1104. The third AF coil 1122 c associated with the third magnet 1120 cis located in a seventh location 1107 or outwardly of the seventhlocation 1107. The fourth AF coil 1122 d associated with the fourthmagnet 1120 d is located in a tenth location 1110 or outwardly of thetenth location 1110.

The first OIS coil 1124 a associated with the first magnet 1120 a islocated in a third location 1103. The second OIS coil 1124 b associatedwith the second magnet 1120 b is located in a sixth location 1106. Thethird OIS coil 1124 c associated with the third magnet 1120 c is locatedin a ninth location 1109. The fourth OIS coil 1124 d associated with thefourth magnet 1120 d is located in a twelfth location 1112.

FIG. 12 illustrates a schematic top view of a multiple coil arrangement1200 of an optical device, according to disclosed embodiments. Themultiple coil arrangement 1200 includes eight magnets 1220 a-h, four AFcoils 1222 e-h, and four OIS coils 1224 a-d disposed along a squarepattern 1290. A first plurality of magnets 1220 e-h (four are shown) aredisposed at four corners of the square pattern 1290. A second pluralityof magnets 1220 a-d (four are shown) are disposed at four sides of thesquare pattern 1290. A first magnet 1220 a is located in a firstlocation 1201, a second magnet 1220 b is located in a third location1203, a third magnet 1220 c is located in a fifth location 1205, and afourth magnet 1220 d is located in a seventh location 1207. A fifthmagnet 1220 e is located in a ninth location 1209, a sixth magnet 1220 fis located in a tenth location 1210, a seventh magnet 1220 g is locatedin an eleventh location 1211, and an eighth magnet 1220 h is located ina twelfth location 1212. The first plurality of magnets 1220 e-h arenon-regular octagonal in shape and the second plurality of magnets 1220a-d are rectangular in shape.

The second plurality of magnets 1220 a-d located on each side of thesquare pattern 1290 are magnetized horizontally or vertically toward alens (such as the lens 304) to generate magnetic fields horizontally inhorizontal directions (or vertically in vertical directions) toward acenter of the square pattern 1290 and toward the lens. A north pole ofeach magnet of the plurality of magnets 1220 a-d faces inwardly towardsthe center (e.g., the lens location) of the square pattern 1290 and thesouth pole of each magnet of the plurality of magnets 1220 a-d facesoutwardly away from the center (e.g., the lens location) of the squarepattern 1290. The plurality of magnets 1220 e-h located on each cornerof the square pattern 1290 generate magnetic fields vertically invertical directions in the z-direction (e.g., parallel to a directionfrom the lens and toward the image sensor). In one example, a north poleof each magnet of the plurality of magnets 1220 e-h faces downwardlytoward the image sensor and the south pole of each magnet of theplurality of magnets 1220 e-h faces upwardly and toward the lens.

The first AF coil 1222 e associated with a fifth magnet 1220 e islocated in the ninth location 1209. The second AF coil 1222 f associatedwith a sixth magnet 1220 f is located in the tenth location 1210. Thethird AF coil 1222 g associated with a seventh magnet 1220 g is locatedin the eleventh location 1211. The fourth AF coil 1222 h associated withan eighth magnet 1220 h is located in the twelfth location 1212.

The first OIS coil 1224 a associated with a first magnet 1220 a islocated in a second location 1202. The second OIS coil 1224 b associatedwith a second magnet 1202 b is located in a fourth location 1204. Thethird OIS coil 1224 c associated with a third magnet 1220 c is locatedin a sixth location 1206. The fourth OIS coil 1224 d associated with afourth magnet 1220 d is located in an eighth location 1208.

In one embodiment, which can be combined with other embodiments, thefirst plurality of magnets 1220 e-h are associated with moving the lens,and the second plurality of magnets 1220 a-d are associated with movingthe image sensor. In one embodiment, which can be combined with otherembodiments, the first plurality of magnets 1220 e-h are associated withmoving the image sensor, and the second plurality of magnets 1220 a-dare associated with moving the lens.

In one embodiment, which can be combined with other embodiments, the AFcoils 1222 e-h are aligned entirely under respective magnets of thefirst plurality of magnets 1220 e-h. In one embodiment, which can becombined with other embodiments, each AF coil of the AF coils 1222 e-his aligned between an inner surface and an outer surface of a respectivemagnet of the first plurality of magnets 1220 e-h. In one example,centers of the AF coils 1222 e-h in the x-y plane are aligned verticallyunder centers of respective magnets of the first plurality of magnets1220 e-h in the x-y plane. In one example, a center of each AF coil ofthe AF coils 1222 e-h in the x-y plane is aligned between an innersurface and an outer surface of each respective magnet of the firstplurality of magnets 1220 e-h in the x-y plane. Magnetizations of thefirst plurality of magnets 1220 e-h being oriented vertically invertical directions facilitates aligning each AF coil of the AF coils1222 e-h between an inner surface and an outer surface of a respectivemagnet of the first plurality of magnets 1220 e-h.

By including separate magnets for each of the plurality of AF coils 1222e-h and for each of the plurality of OIS coils 1224 a-d, the edges andcorners of the square pattern are more fully utilized, facilitatingcompactness of optical devices and camera systems. Space within thesquare pattern 1290 is also saved as each of the plurality of AF coils1222 e-h are located either underneath, above, or both underneath andabove the plurality of magnets 1220 e-h associated with each of theplurality of AF coils 1222 e-h. Furthermore, the magnetic field may bemaximized for both the plurality of AF coils 1222 e-h and the pluralityof OIS coils 1224 a-d, such that each coil 1222 e-h is associated withan individual magnet of the plurality of magnets 1220 a-h. By maximizingthe magnetic field applied to each of the plurality of OIS coils 1224a-d and the plurality of AF coils 1222 e-h, power may be saved.

FIG. 13 illustrates a schematic top view of a multiple coil arrangement1300 of an optical device, according to disclosed embodiments. Themultiple coil arrangement 1300 includes three magnets 1320 a-c, three AFcoils 1322 a-c, and three OIS coils 1324 a-c disposed along a triangularpattern 1390. Each corner of the triangular pattern 1390 includes amagnet from the three magnets 1320 a-c. A first magnet 1320 a is locatedin a first location 1301, a second magnet 1320 b is located in a thirdlocation 1303, and a third magnet 1320 c is located in a fifth location1305. The magnets 1320 a-c, the AF coils 1322 a-c, and the OIS coils1324 a-c are oriented toward a center of the triangular pattern 1390. Inone embodiment, which can be combined with other embodiments, centers ofthe three magnets 1320 a-c in the x-y plane are aligned with the threerespective corners of the triangular pattern 1390.

The first AF coil 1322 a associated with the first magnet 1320 a islocated between the first location 1301 and a second location 1302. Thesecond AF coil 1322 b associated with the second magnet 1320 b islocated between the third location 1303 and a fourth location 1304. Thethird AF coil 1322 c associated with the third magnet 1320 c is locatedbetween the fifth location 1305 and a sixth location 1306. The presentdisclosure contemplates that the OIS coils 1324 a-c may be disposed onoutward sides of each respective magnet, such as aligned with ordisposed outwardly of outward surfaces of the magnets 1320 a-c. Thepresent disclosure contemplates that the AF coils 1322 a-c may bedisposed on outward sides of each respective magnet, such as alignedwith or disposed outwardly of outward surfaces of the magnets 1320 a-c.The first OIS coil 1324 a associated with the first magnet 1320 a islocated in the second location 1302. The second OIS coil 1324 bassociated with the second magnet 1320 b is located in the fourthlocation 1304. The third OIS coil 1324 c associated with the thirdmagnet 1320 c is located in the sixth location 1306.

FIG. 14A illustrates a schematic top view of a multiple coil arrangement1400 of an optical device, according to disclosed embodiments. Themultiple coil arrangement 1400 includes four magnets 1420 a-d (aplurality of magnets) disposed about a lens, four first AF coils 1422a-d (a first plurality of horizontal coil structures) coiled in one ormore horizontal planes, and four first OIS coils 1426 a-d (a secondplurality of vertical coil structures) coiled in one or more verticalplanes. The multiple coil arrangement 1400 includes four second OIScoils 1424 a-d (a first plurality of vertical coil structures) coiled inone or more vertical planes, and four second AF coils 1428 a-d (a secondplurality of horizontal coil structures) coiled in one or morehorizontal planes. The magnets 1420 a-d, first AF coils 1422 a-d, firstOIS coils 1426 a-d, second OIS coils 1424 a-d, and second AF coils 1428a-d are disposed at corners of a square pattern 1490.

The present disclosure contemplates that, for exemplary purposes, thefirst AF coils 1422 a-d may be referred to as first lens coils, thefirst OIS coils 1426 a-d may be referred to as second lens coils, thesecond OIS coils 1424 a-d may be referred to as first IS coils, and thesecond AF coils 1428 a-d may be referred to as second IS coils.

The four first AF coils 1422 a-d shift the lens in the z-direction whenpowered and may operate independently of each other (e.g., havedifferent electrical currents). Furthermore, four first OIS coils 1426a-d shift the lens in the x-y plane when powered and may operateindependently of each other (e.g., have different electrical currents).The second OIS coils 1424 a-d shift the image sensor in the x-y planewhen powered, and the second AF coils 1428 a-d shift the image sensor inthe z-direction when powered. The second OIS 1424 a-d and the second AFcoils 1428 a-d may operate independently of each other (e.g., havedifferent electrical currents). In one example, the lens may be tiltedrelative to the Z-axis using application of different electrical powerto at least two of the first AF coils 1422 a-d. In one example, theimage sensor may be tilted relative to the Z-axis using application ofdifferent electrical power to at least two of the second AF coils 1428a-d. Other configurations not specifically shown in FIG. 14A arecontemplated and may be applicable to the disclosed embodiments.

The vertical and horizontal coils (the first AF coils 1422 a-d and firstOIS coils 1426 a-d) that move the lens horizontally and/or verticallyare on the same side (e.g., on inward sides) of each respective magnetof the plurality of magnets 1420 a-d. The vertical and horizontal coils(the second OIS coils 1424 a-d and second AF coils 1428 a-d) that movethe image sensor horizontally and/or vertically are on the same side(e.g., on outward sides) of each respective magnet of the plurality ofmagnets 1420 a-d. The positions of the various coils may be swapped suchthat the first AF coils 1422 a-d and first OIS coils 1426 a-d aredisposed on outward sides of each respective magnet, and the second OIScoils 1424 a-d and second AF coils 1428 a-d are disposed on inward sidesof each respective magnet.

The first magnet 1420 a is located in a second location 1402, the secondmagnet 1420 b is located in a fifth location 1405, the third magnet 1420c is located in an eighth location 1408, and the fourth magnet 1420 d islocated in an eleventh location 1411.

A first AF coil 1422 a associated with the first magnet 1420 a islocated between the second location 1402 and a third location 1403. Afirst AF coil 1422 b associated with the second magnet 1420 b is locatedbetween the fifth location 1405 and a sixth location 1406. A first AFcoil 1422 c associated with the third magnet 1420 c is located betweenthe eighth location 1408 and a ninth location 1409. A first AF coil 1422d associated with the fourth magnet 1420 d is located between theeleventh location 1411 and a twelfth location 1412.

A first OIS coil 1426 a associated with the first magnet 1420 a islocated at the third location 1403. A first OIS coil 1426 b associatedwith the second magnet 1420 b is located at the sixth location 1406. Afirst OIS coil 1426 c associated with the third magnet 1420 c is locatedat the ninth location 1409. A first OIS coil 1426 d associated with thefourth magnet 1420 d is located at the twelfth location 1412.

The second OIS coil 1424 a associated with the first magnet 1420 a islocated in a first location 1401. The second OIS coil 1424 b associatedwith the second magnet 1420 b is located in a fourth location 1404. Thesecond OIS coil 1424 c associated with the third magnet 1420 c islocated in a seventh location 1407. The second OIS coil 1424 dassociated with the fourth magnet 1420 d is located in a tenth location1410.

A second AF coil 1428 a associated with the first magnet 1420 a islocated between the first location 1401 and the second location 1402. Asecond AF coil 1428 b associated with the second magnet 1420 b islocated between the fourth location 1404 and the fifth location 1405. Asecond AF coil 1428 c associated with the third magnet 1420 c is locatedbetween the seventh location 1407 and the eighth location 1408. A secondAF coil 1428 d associated with the fourth magnet 1420 d is locatedbetween the tenth location 1410 and the eleventh location 1411.

FIG. 14B illustrates a schematic partial side view of the multiple coilarrangement 1400 shown in FIG. 14A, according to disclosed embodiments.The multiple coil arrangement 1400 of the optical device is a part of acamera system, such as the camera 104 of the device 100, the camerasystem 200, and/or the camera system 300. In the multiple coilarrangement 1400, the magnetic field of the magnet 1452 is illustratedby the solid arrows traveling from the south pole S to the north pole Nof the magnet 1452. Though the multiple coil arrangement 1400illustrates a single magnet 1452, the disclosed embodiments may reflecton all the magnets of the camera system, such as the magnets illustratedin FIGS. 3-14A. The first AF coil 1422 a may adjust the lens along andrelative to the z-direction, and the first OIS coil 1426 a may adjustthe lens relative to the x-y plane. The second OIS coil 1424 a mayadjust the image sensor along the x-y plane and the second AF coil 1428a may adjust the image sensor along and relative to the z-direction. Itis contemplated that other configurations of the coils 1422 a, 1424 a,1426 a, 1428 a may be applicable to the disclosed embodiments.

In FIG. 14B, the split coil design 1400 includes a first AF coil 1422 a,a first OIS coil 1426 a, a second OIS coil 1424 a, and a second AF coil1428 a. The second OIS coil 1424 a is disposed outwardly of an outersurface 1421 of the magnet 1452 and is coiled in a vertical planeadjacent to the magnet 1452. The second AF coil 1428 a is disposed andaligned at least partially below a lower surface 1419 of the magnet1452. The second AF coil 1428 a includes a first portion alignedvertically under the magnet 1452 and a second portion aligned verticallyoutwardly of the outer surface 1421 of the magnet 1452. A center of thesecond AF coil 1428 a is aligned vertically under or outwardly of theouter surface 1421 of the magnet 1452.

The first AF coil 1422 a is aligned partially vertically under the lowersurface 1419 of the magnet 1452. The first AF coil 1422 a includes afirst portion aligned vertically under the magnet 1452 and a secondportion aligned vertically inwardly of an inner surface 1418 of themagnet 1452. A center of the first AF coil 1422 a is aligned verticallyunder or inwardly of the inner surface 1418 of the magnet 1452.

In one example, the positions of the first AF coils 1422 a (e.g., inwardpositions) are switched with the second AF coils 1428 a (e.g., outwardpositions) and the positions of the first OIS coils 1426 a (e.g., inwardpositions) are switched with the second OIS coils 1424 a (e.g., outwardpositions). In one example, the first AF coil 1422 a and/or the secondAF coil 1428 a may be located above the magnet 1452. In one example, thefirst AF coil 1422 a and/or the second AF coil 1428 a may be locatedboth above and below the magnet 1452. In one example, one of the firstAF coil 1422 a or the second AF coil 1428 a is located above the magnet1452, and the other of the first AF coil 1422 a or the second AF coil1428 a is located below the magnet 1452.

FIGS. 15-17 are schematic illustrations of side views of multiple coilarrangements 1500, 1600, 1700 of an optical device of a camera system,according to disclosed embodiments. Each magnet apparatus of themultiple coil arrangements 1500, 1600, 1700 may include two or moremagnets coupled together. In one example of a multiple coil arrangementof a camera system including a single magnet for each magnet apparatus,a magnetic field generated points inwardly towards a center of a lens,such that the north pole of the magnet is faces inward towards the lensand the south pole of the magnet faces outwards away from the lens. Inone example, the north pole of the magnet faces inward towards the lensand the south pole of the magnet faces outwards away from the lens at180° opposite of the north pole (as shown in FIG. 16). In one example,the magnet is magnetized inward towards the lens at an angle, relativeto the horizontal plane, and the angle is an oblique angle that is about45° from the horizontal plane. In such an example where the magnet ismagnetized at an oblique angle, the magnet is magnetized horizontallyinwardly toward the lens and toward the OIS coil. The magnet is alsomagnetized vertically (e.g., downwardly) toward the image sensor andtoward the AF coil. In one example, the magnet is magnetized at an anglerelative to the horizontal plane, and the angle is about 90° (as shownin FIG. 15) from the horizontal plane. The listed angles are notintended to be limiting, but to provide an examples of possibleembodiments. In yet another embodiment, the magnet may generate amagnetic field pointing in the z-direction.

In a multiple coil arrangement including a first magnet coupled to asecond magnet, the first magnet may have a magnetic field generated thatis antiparallel to the magnetic field generated by the second magnet. Inone example, the first magnet may have a magnetic field generated thatis perpendicular to the magnetic field generated by the second magnet.

The multiple coil arrangement 1500 shown in FIG. 15 illustrates a firstmagnet 1502 with a magnetic field 1510 pointing vertically downward inthe negative z-direction. The magnetic field 1510 pointsperpendicularly, such as at a 90° angle relative to a horizontal plane(e.g., the x-y plane). An AF coil 1504 is coiled in a horizontal planeand is disposed below the first magnet 1502. The AF coil 1504 may becoupled to an image sensor or a lens to move the image sensor or thelens vertically. An OIS coil 1506 is coiled in a vertical plane and isdisposed inwardly of the first magnet 1502. The OIS coil 1506 may becoupled to an image sensor or a lens to move the image sensor or thelens horizontally (e.g., in the x-y plane). The magnetic field 1510oriented parallel to the z-axis facilitates the image sensor or the lensbeing moved along the z-axis if the image sensor or lens is attached tothe AF coil 1504, and/or being moved along the x-y plane if the imagesensor or lens is attached to the OIS coil 1506. A center of the OIScoil 1506 is aligned horizontally with an upper surface 1509 of thefirst magnet 1502.

The multiple coil arrangement 1600 shown in FIG. 16 illustrates a firstmagnet 1602 a with a magnetic field 1610 pointing in a horizontaldirection (e.g., inwardly and toward the lens) and a second magnet 1602b with a magnetic field 1611 pointing in a vertical direction (e.g.,downwardly and toward the image sensor). A north pole of the firstmagnet 1602 a faces inwardly toward the lens and a south pole of thefirst magnet 1602 a faces outwardly away from the lens. A north pole ofthe second magnet 1602 b faces downwardly (e.g., parallel to a directionfrom the lens and toward the image sensor) and a south pole of thesecond magnet 1602 b faces upwardly (e.g., parallel to a direction fromthe image sensor and toward the lens). The magnetic field 1610 of thefirst magnet 1602 a is perpendicular to the magnetic field 1611 of thesecond magnet 1602 b. An AF coil 1604 is located parallel to thehorizontal plane of the second magnet 1602 b. An OIS coil 1606 islocated parallel to the vertical plane of the first magnet 1602 a. Byhaving a dedicated second magnet 1602 b acting on the AF coil 1604, themagnetic field experienced by the AF coil 1604 is larger, facilitatingefficiency and less electrical power (e.g., current) needed for the AFcoils. Thus, the amount of current needed to adjust the AF coil 1604 isreduced.

The multiple coil arrangement 1700 shown in FIG. 17 illustrates a firstmagnet 1702 a with a magnetic field 1710 pointing in a horizontaldirection and a second magnet 1702 b with a magnetic field 1711 pointingto the opposite horizontal direction. A magnetization of the firstmagnet 1702 a is antiparallel to a magnetization of the second magnet1702 b. The magnetic field 1710 of the first magnet 1702 a isantiparallel to the magnetic field 1711 of the second magnet 1702 b. AnAF coil 1706 is located parallel to the vertical plane of both the firstmagnet 1702 a and the second magnet 1702 b. The antiparallel magneticfields 1710, 1711 of the first magnet 1702 a and the second magnet 1702b changes the AF coil 1706 force direction by 90°. By changing the AFcoil 1706 force direction by 90°, the AF coil 1706 is able to move inthe z-direction such that the AF coil 1706 is used to move a lens or animage sensor vertically in the z-direction. The AF coil 1706 is disposedinward of the first and second magnets 1702 a, 1702 b (as shown in FIG.17) or outward of the first and second magnets 1702 a, 1702 b. An OIScoil 1704 is located below the second magnet 1702 b and parallel to ahorizontal plane of the second magnet 1702 b. The OIS coil 1704 is usedto move a lens or an image sensor in a horizontal direction, such asalong the x-y plane. The antiparallel magnetic fields 1710, 1711 of thefirst magnet 1702 a and the second magnet 1702 b changes the OIS coil1704 force direction by 90°. By changing the OIS coil 1704 forcedirection by 90°, the OIS coil 1704 is able to move in a horizontaldirection. By having a dedicated second magnet 1702 b acting on the OIScoil 1704, the magnetic field experienced by the OIS coil 1704 islarger, such as that where the AF coils and the OIS coils share the samemagnetic field. Thus, the amount of current needed to adjust the OIScoil 1704 is reduced. In one embodiment, which can be combined withother embodiments, the second magnet 1702 b is disposed in contact withthe first magnet 1702 a. In one example, the second magnet 1702 b iscoupled to the first magnet 1702 a.

Though the multiple coil arrangements 1500, 1600, 1700 illustrate asingle magnet 1502, a single pair of magnets 1602 a, 1602 b, and asingle pair of magnets 1702 a, 1702 b, the disclosed embodiments mayreflect on some or all of the plurality of magnets or the plurality ofpairs of magnets of a camera system.

Benefits of the present disclosure include utilizing coil structures(such as vertical coil structures) to facilitate independently movingimage sensors relative to lenses, and that facilitate tilt, optimalimage stabilization (01S), and auotofocus (AF) functions of camerasystems. By using magnetic field directions described herein for magnetsor by having dedicated magnets for each of the plurality of lens coilsand/or the plurality of IS coils, power and space within the opticaldevice and camera system may be saved. Furthermore, by adjusting thecurrents of the IS coils individually, an image sensor tilt and/or shiftis achieved. The image sensor tilt and/or shift as well as the lens tiltmay allow for an optimal optical path of the lens to the image sensorfor the autofocus function and an optimal image on the image sensor inresponse to motion detected by the gyroscope.

It is contemplated that one or more aspects disclosed herein may becombined. Moreover, it is contemplated that one or more aspectsdisclosed herein may include some or all of the aforementioned benefits.As an example, the present disclosure contemplates that one or more ofthe aspects, features, components, and/or properties of the lens 304,the image sensor 310, the multiple coil arrangements 400, 425, 450, themultiple coil arrangements 500-1400, and/or the multiple coilarrangements 1500-1700 may be combined.

In one embodiment, an optical device comprises a lens and an imagesensor disposed below the lens. The image sensor is movable relative tothe lens. The optical device includes a plurality of magnets disposedabout the lens and magnetized horizontally toward the lens to generatemagnetic fields horizontally in horizontal directions toward the lens.The optical device includes a plurality of vertical coil structurescoiled in one or more vertical planes, and one or more horizontal coilstructures coiled in one or more horizontal planes. The optical devicealso includes a second plurality of magnets disposed above or below theplurality of magnets, where the second plurality of magnets aremagnetized vertically to generate magnetic fields vertically in verticaldirections toward the one or more horizontal coil structures. In oneexample, a north pole of each magnet of the plurality of magnets facesinwardly toward the lens, and a south pole of each magnet of theplurality of magnets faces outwardly away from the lens. In one example,a north pole of each magnet of the second plurality of magnets facesdownwardly and parallel to a direction from the lens and toward theimage sensor, and a south pole of each magnet of the second plurality ofmagnets faces upwardly and parallel to a direction from the image sensorand toward the lens. Each magnet of the second plurality of magnets iscoupled to a respective magnet of the plurality of magnets. Theplurality of magnets are disposed at corners of a pattern or at sides ofthe pattern. The pattern is a square pattern or a triangular pattern.

A surface of each magnet of the plurality of magnets faces a respectivehorizontal coil structure of the one or more horizontal coil structures.The surface of each magnet includes a first surface area, and therespective horizontal coil structure includes a second surface areafacing the surface of the magnet. The second surface area is a ratio ofthe first surface area, and the ratio is within a range of 0.8 to 1.2.In one example, each vertical coil structure of the plurality ofvertical coil structures is disposed inwardly of an inner surface of arespective magnet of the plurality of magnets, or disposed outwardly ofan outer surface of the respective magnet of the plurality of magnets.In one example, each horizontal coil structure of the one or morehorizontal coil structures is disposed at least partially above an uppersurface of a respective magnet of the plurality of magnets, or at leastpartially below a lower surface of the respective magnet of theplurality of magnets. A camera system that includes the optical deviceis also disclosed.

In one embodiment, an optical device comprises a lens, and an imagesensor disposed below the lens. The image sensor is movable relative tothe lens. The optical device includes a first plurality of magnetsdisposed about the lens and at corners of a square pattern, and a secondplurality of magnets disposed about the lens and at sides of the squarepattern. The optical device includes a plurality of vertical coilstructures coiled in one or more vertical planes that, when powered,horizontally move the image sensor or the lens. Each vertical coilstructure of the plurality of vertical coil structures is disposedinwardly of an inner surface of a respective magnet of the secondplurality of magnets. The optical device includes a plurality ofhorizontal coil structures coiled in one or more horizontal planes that,when powered, move the lens or the image sensor. Each horizontal coilstructure of the plurality of horizontal coil structures includes acenter aligned above or below a respective magnet of the first pluralityof magnets. The first plurality of magnets are magnetized vertically togenerate magnetic fields vertically in vertical directions, and thesecond plurality of magnets are magnetized horizontally toward the lensto generate magnetic fields horizontally in horizontal directions towardthe lens. Each horizontal coil structure of the plurality of horizontalcoil structures is aligned between an inner surface and an outer surfaceof a respective magnet of the first plurality of magnets. A camerasystem including the optical device is also disclosed.

In one embodiment, an optical device comprises a lens and an imagesensor disposed below the lens. The image sensor is movable relative tothe lens. The optical device includes a first plurality of magnetsdisposed about the lens and magnetized horizontally toward the lens togenerate magnetic fields horizontally in horizontal directions towardthe lens, and a second plurality of magnets disposed about the lens andmagnetized horizontally away from the lens to generate magnetic fieldshorizontally in horizontal directions away from the lens. Each magnet ofthe second plurality of magnets is disposed above or below a respectivemagnet of the first plurality of magnets. The optical device alsoincludes one or more horizontal coil structures coiled in one or morehorizontal planes that, when powered, horizontally move the lens or theimage sensor. The optical device also includes a plurality of verticalcoil structures coiled in one or more vertical planes that, whenpowered, move the image sensor relative to the lens. In one example,each vertical coil structure of the plurality of vertical coilstructures is disposed inwardly of an inner surface of a respectivemagnet of the first plurality of magnets and inwardly of an innersurface of a respective magnet of the second plurality of magnets. Inone example, each vertical coil structure of the plurality of verticalcoil structures is disposed outwardly of an outer surface of arespective magnet of the first plurality of magnets and outwardly of anouter surface of a respective magnet of the second plurality of magnets.Each magnet of the second plurality of magnets is coupled to arespective magnet of the first plurality of magnets. A magnetization ofeach magnet of the first plurality of magnets is antiparallel to amagnetization of a respective magnet of the second plurality of magnets.A camera system including the optical device is also disclosed.

While the foregoing is directed to embodiments of the presentdisclosure, other and further embodiments of the disclosure may bedevised without departing from the basic scope thereof, and the scopethereof is determined by the claims that follow.

1. An optical device, comprising: a lens; an image sensor disposed belowthe lens, wherein the image sensor is movable relative to the lens; afirst plurality of magnets disposed about the lens and magnetizedhorizontally toward the lens to generate magnetic fields horizontally inhorizontal directions toward the lens; a plurality of vertical coilstructures coiled in one or more vertical planes; one or more horizontalcoil structures coiled in one or more horizontal planes; and a secondplurality of magnets disposed above or below the first plurality ofmagnets, wherein the second plurality of magnets are magnetizedvertically to generate magnetic fields vertically in vertical directionstoward the one or more horizontal coil structures.
 2. (canceled)
 3. Theoptical device of claim 1, wherein a north pole of each magnet of thefirst plurality of magnets faces inwardly toward the lens, and a southpole of each magnet of the first plurality of magnets faces outwardlyaway from the lens.
 4. The optical device of claim 3, wherein a northpole of each magnet of the second plurality of magnets faces downwardlyand parallel to a direction from the lens and toward the image sensor,and a south pole of each magnet of the second plurality of magnets facesupwardly and parallel to a direction from the image sensor and towardthe lens.
 5. The optical device of claim 1, wherein each magnet of thesecond plurality of magnets is coupled to a respective magnet of thefirst plurality of magnets.
 6. The optical device of claim 1, whereinthe first plurality of magnets are disposed at corners of a pattern orat sides of the pattern, wherein the pattern is a square pattern or atriangular pattern.
 7. The optical device of claim 1, wherein a surfaceof each magnet of the first plurality of magnets faces a respectivehorizontal coil structure of the one or more horizontal coil structures,the surface of each magnet includes a first surface area, and therespective horizontal coil structure includes a second surface areafacing the surface of the magnet, wherein the second surface area is aratio of the first surface area, and the ratio is within a range of 0.8to 1.2.
 8. The optical device of claim 1, wherein each vertical coilstructure of the plurality of vertical coil structures is disposedinwardly of an inner surface of a respective magnet of the firstplurality of magnets, or disposed outwardly of an outer surface of therespective magnet of the first plurality of magnets.
 9. The opticaldevice of claim 1, wherein each horizontal coil structure of the one ormore horizontal coil structures is disposed at least partially above anupper surface of a respective magnet of the first plurality of magnets,or at least partially below a lower surface of the respective magnet ofthe first plurality of magnets.
 10. A camera system comprising theoptical device of claim
 1. 11. An optical device, comprising: a lens; animage sensor disposed below the lens, wherein the image sensor ismovable relative to the lens; a first plurality of magnets disposedabout the lens and at corners of a square pattern; a second plurality ofmagnets disposed about the lens and at sides of the square pattern; aplurality of vertical coil structures coiled in one or more verticalplanes that, when powered, horizontally move the image sensor or thelens, each vertical coil structure of the plurality of vertical coilstructures disposed inwardly of an inner surface of a respective magnetof the second plurality of magnets; a plurality of horizontal coilstructures coiled in one or more horizontal planes that, when powered,move the lens or the image sensor, and each horizontal coil structure ofthe plurality of horizontal coil structures includes a center alignedabove or below a respective magnet of the first plurality of magnets.12. The optical device of claim 11, wherein the first plurality ofmagnets are magnetized vertically to generate magnetic fields verticallyin vertical directions, and the second plurality of magnets aremagnetized horizontally toward the lens to generate magnetic fieldshorizontally in horizontal directions toward the lens.
 13. The opticaldevice of claim 11, wherein each horizontal coil structure of theplurality of horizontal coil structures is aligned between an innersurface and an outer surface of a respective magnet of the firstplurality of magnets.
 14. A camera system comprising the optical deviceof claim
 11. 15. An optical device, comprising: a lens; an image sensordisposed below the lens, wherein the image sensor is movable relative tothe lens; a first plurality of magnets disposed about the lens andmagnetized horizontally toward the lens to generate magnetic fieldshorizontally in horizontal directions toward the lens; a secondplurality of magnets disposed about the lens and magnetized horizontallyaway from the lens to generate magnetic fields horizontally inhorizontal directions away from the lens, wherein each magnet of thesecond plurality of magnets is disposed above or below a respectivemagnet of the first plurality of magnets; and one or more horizontalcoil structures coiled in one or more horizontal planes that, whenpowered, horizontally move the lens or the image sensor.
 16. The opticaldevice of claim 15, further comprising a plurality of vertical coilstructures coiled in one or more vertical planes that, when powered,vertically move the lens or the image sensor, wherein each vertical coilstructure of the plurality of vertical coil structures is disposedinwardly of an inner surface of a respective magnet of the firstplurality of magnets and inwardly of an inner surface of a respectivemagnet of the second plurality of magnets.
 17. The optical device ofclaim 15, further comprising a plurality of vertical coil structurescoiled in one or more vertical planes that, when powered, verticallymove the lens or the image sensor, wherein each vertical coil structureof the plurality of vertical coil structures is disposed outwardly of anouter surface of a respective magnet of the first plurality of magnetsand outwardly of an outer surface of a respective magnet of the secondplurality of magnets.
 18. The optical device of claim 15, wherein eachmagnet of the second plurality of magnets is coupled to a respectivemagnet of the first plurality of magnets.
 19. The optical device ofclaim 15, wherein a magnetization of each magnet of the first pluralityof magnets is antiparallel to a magnetization of a respective magnet ofthe second plurality of magnets.
 20. A camera system comprising theoptical device of claim
 15. 21. The optical device of claim 1, furthercomprising a base defining an X-Y plane extending parallel to the baseand a Z-axis extending perpendicularly to the X-Y plane, wherein theimage sensor is disposed below the lens along the Z-axis, the one ormore vertical planes extend parallel to the Z-axis, and the one or morehorizontal planes are oriented perpendicularly to the one or morevertical planes and the Z-axis.
 22. The optical device of claim 11,further comprising a base defining an X-Y plane extending parallel tothe base and a Z-axis extending perpendicularly to the X-Y plane,wherein the image sensor is disposed below the lens along the Z-axis,the one or more vertical planes extend parallel to the Z-axis, and theone or more horizontal planes are oriented perpendicularly to the one ormore vertical planes and the Z-axis.
 23. The optical device of claim 15,further comprising a base defining an X-Y plane extending parallel tothe base and a Z-axis extending perpendicularly to the X-Y plane,wherein the image sensor is disposed below the lens along the Z-axis,and the one or more horizontal planes are oriented perpendicularly tothe Z-axis.
 24. An optical device, comprising: a lens; an image sensordisposed below the lens, wherein the image sensor is movable relative tothe lens; a plurality of magnets disposed about the lens and magnetizedhorizontally toward the lens to generate magnetic fields horizontally inhorizontal directions toward the lens; a plurality of vertical coilstructures coiled in one or more vertical planes; and one or morehorizontal coil structures coiled in one or more horizontal planes,wherein a surface of each magnet of the plurality of magnets faces arespective horizontal coil structure of the one or more horizontal coilstructures, the surface of each magnet includes a first surface area,and the respective horizontal coil structure includes a second surfacearea facing the surface of the magnet, wherein the second surface areais a ratio of the first surface area, and the ratio is within a range of0.8 to 1.2.
 25. The optical device of claim 24, further comprising abase defining an X-Y plane extending parallel to the base and a Z-axisextending perpendicularly to the X-Y plane, wherein the image sensor isdisposed below the lens along the Z-axis, the one or more verticalplanes extend parallel to the Z-axis, and the one or more horizontalplanes are oriented perpendicularly to the one or more vertical planesand the Z-axis.